diff options
Diffstat (limited to 'drivers/block/floppy.c')
| -rw-r--r-- | drivers/block/floppy.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 40419b066aa..3126d5122b2 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -3616,6 +3616,7 @@ static int floppy_release(struct gendisk *disk, fmode_t mode) { int drive = (long)disk->private_data; + lock_kernel(); mutex_lock(&open_lock); if (UDRS->fd_ref < 0) UDRS->fd_ref = 0; @@ -3626,6 +3627,7 @@ static int floppy_release(struct gendisk *disk, fmode_t mode) if (!UDRS->fd_ref) opened_bdev[drive] = NULL; mutex_unlock(&open_lock); + unlock_kernel(); return 0; } @@ -3643,6 +3645,7 @@ static int floppy_open(struct block_device *bdev, fmode_t mode) int res = -EBUSY; char *tmp; + lock_kernel(); mutex_lock(&open_lock); old_dev = UDRS->fd_device; if (opened_bdev[drive] && opened_bdev[drive] != bdev) @@ -3719,6 +3722,7 @@ static int floppy_open(struct block_device *bdev, fmode_t mode) goto out; } mutex_unlock(&open_lock); + unlock_kernel(); return 0; out: if (UDRS->fd_ref < 0) @@ -3729,6 +3733,7 @@ out: opened_bdev[drive] = NULL; out2: mutex_unlock(&open_lock); + unlock_kernel(); return res; } |